<template>
  <view >
    <view class="search-box">
       <uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
    </view>
   
    
    <view class="sugg-list" v-if="searchResults.length !== 0">
      <view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item.goods_id)">
        <view class="goods-name">
          {{item.goods_name}}
        </view>
        <uni-icons type="arrowright" size="16"></uni-icons>
      </view>
    </view>
    
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash" size="17" @click="cleanHistory"></uni-icons>
      </view>
      
      <view class="history-list">
        <uni-tag :text="item" v-for="(item,i) in historyList" :key="i" @click="gotoGoodsList(item)"></uni-tag>
      </view>
    </view>
    
  </view>
</template>

<script>
import { getSearchList } from '../../api/search';
import {mapMutations} from 'vuex'
  export default {
    data() {
      return {
        timer: null,
        kw: '',
        searchResults: [],
        historyList: this.$store.state.m_search.history
      };
    },
    methods:{
      ...mapMutations('m_search',['updateHistory']),
      input(e){
        // console.log(e);
        clearTimeout(this.timer)
        
        this.timer = setTimeout(() => {
          this.kw = e
          console.log(this.kw);
          console.log(this.$store.state.m_search.history);
          this.getSearchList()
        },500)
      },
      async getSearchList() {
        if(this.kw === '') {
          this.searchResults = []
          return
        }
        
        const {data:res} = await getSearchList(this.kw)
        console.log(res);
        if(res.meta.status !== 200) return uni.$showMsg()
        this.searchResults = res.message
        
        this.saveSearchHistory(this.kw)
      },
      
      gotoDetail(goods_id){
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods_id
        })
      },
      
      saveSearchHistory(key){
        const index = this.historyList.indexOf(key)
        if(index !== -1){
          this.historyList.splice(index,1)
        }
        this.historyList.unshift(key)
        this.updateHistory(this.historyList)
        
      },
      
      cleanHistory(){
        this.historyList = []
        this.updateHistory([])
      },
      
      gotoGoodsList(kw){
        uni.navigateTo({
          url: '/subpkg/goods_list/goods_list?query=' + kw
        })
      }
    }
  }
</script>

<style lang="scss">
.search-box{
  position: sticky;
  top: 0;
  z-index: 999;
}

.sugg-list{
  padding: 0 5px;
  
  .sugg-item{
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    display: flex;
    align-items: center;
    justify-content: space-between;
    
    .goods-name {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-right: 3px;
    }
  }
}

.history-box {
  padding: 0 5px;

  .history-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 40px;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }

  .history-list {
    display: flex;
    flex-wrap: wrap;

    .uni-tag {
      margin-top: 5px;
      margin-right: 20px;
    }
  }
}

</style>
